TREA

Thomas Hasenfratz

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  • Lindau, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Telephone call processing
    • Patent number 7,567,663
    • Issue date Jul 28, 2009
    • Siemens Aktiengesellschaft
    • Michael Doelle
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Telephone call processing
    • Publication number 20050123119
    • Publication date Jun 9, 2005
    • Siemens Aktiengesellschaft
    • Michael Doelle
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE